Kustomize Secret 파일 참조 오류 수정

- Base kustomization에서 존재하지 않는 secret-api-gateway.yaml, secret-kos-mock.yaml 참조 제거
- 환경별 Overlay에서 불필요한 Secret Patch 참조 제거
- 불필요한 Secret Patch 파일들 삭제
- Kustomize 빌드 검증 완료

Fixes GitHub Actions 파이프라인의 Kustomize 빌드 실패 문제

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/kustomize/base/kustomization.yaml

@@ -16,7 +16,6 @@ resources:
   - api-gateway/deployment.yaml
   - api-gateway/service.yaml
   - api-gateway/cm-api-gateway.yaml
-  - api-gateway/secret-api-gateway.yaml
 
   # User Service
   - user-service/deployment.yaml
@@ -40,7 +39,6 @@ resources:
   - kos-mock/deployment.yaml
   - kos-mock/service.yaml
   - kos-mock/cm-kos-mock.yaml
-  - kos-mock/secret-kos-mock.yaml
 
 images:
   - name: acrdigitalgarage01.azurecr.io/phonebill/api-gateway

.github/kustomize/overlays/dev/kustomization.yaml

@@ -39,10 +39,6 @@ patches:
     target:
       kind: Deployment
       name: kos-mock
-  - path: secret-api-gateway-patch.yaml
-    target:
-      kind: Secret
-      name: secret-api-gateway
   - path: secret-user-service-patch.yaml
     target:
       kind: Secret
@@ -55,10 +51,6 @@ patches:
     target:
       kind: Secret
       name: secret-product-service
-  - path: secret-kos-mock-patch.yaml
-    target:
-      kind: Secret
-      name: secret-kos-mock
 
 images:
   - name: acrdigitalgarage01.azurecr.io/phonebill/api-gateway

.github/kustomize/overlays/dev/secret-api-gateway-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-api-gateway
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"

.github/kustomize/overlays/dev/secret-kos-mock-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-kos-mock
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"

.github/kustomize/overlays/prod/kustomization.yaml

@@ -39,10 +39,6 @@ patches:
     target:
       kind: Deployment
       name: kos-mock
-  - path: secret-api-gateway-patch.yaml
-    target:
-      kind: Secret
-      name: secret-api-gateway
   - path: secret-user-service-patch.yaml
     target:
       kind: Secret
@@ -55,10 +51,6 @@ patches:
     target:
       kind: Secret
       name: secret-product-service
-  - path: secret-kos-mock-patch.yaml
-    target:
-      kind: Secret
-      name: secret-kos-mock
 
 images:
   - name: acrdigitalgarage01.azurecr.io/phonebill/api-gateway

.github/kustomize/overlays/prod/secret-api-gateway-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-api-gateway
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"

.github/kustomize/overlays/prod/secret-kos-mock-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-kos-mock
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"

.github/kustomize/overlays/staging/kustomization.yaml

@@ -39,10 +39,6 @@ patches:
     target:
       kind: Deployment
       name: kos-mock
-  - path: secret-api-gateway-patch.yaml
-    target:
-      kind: Secret
-      name: secret-api-gateway
   - path: secret-user-service-patch.yaml
     target:
       kind: Secret
@@ -55,10 +51,6 @@ patches:
     target:
       kind: Secret
       name: secret-product-service
-  - path: secret-kos-mock-patch.yaml
-    target:
-      kind: Secret
-      name: secret-kos-mock
 
 images:
   - name: acrdigitalgarage01.azurecr.io/phonebill/api-gateway

.github/kustomize/overlays/staging/secret-api-gateway-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-api-gateway
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"

.github/kustomize/overlays/staging/secret-kos-mock-patch.yaml

@@ -1,7 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: secret-kos-mock
-type: Opaque
-stringData:
-  PLACEHOLDER: "dev-value"